I made 2 (4-5 oz) burgers and used the same amount of herbs as ask for. I did add salt and pepper for us. The burgers were yummy, moist and juicy. with the herbs adding a fresh taste.
This recipe is one that proves that "low salt diet" does not mean "bland": or :"tasteless". The butter keeps the inside of the patty moist, and the herbs make it yummy! I did make a change, though. I used a pound of ground beef (about 450 grams) to make my 4 patties, instead of 300 g, and scaled the other ingredients to match. Thanks, Jenny!